(19)

(11)

EP 2 486 328 A1

(12)

(43) Date of publication: 15.08.2012 Bulletin 2012/33 (21) Application number: 09740649.0 (22) Date of filing: 09.10.2009

(51) International Patent Classification (IPC):  F23R 3/34(2006.01) F23N 5/10(2006.01) F23N 5/02(2006.01) F23N 5/16(2006.01) (86) International application number: PCT/EP2009/007299 (87) International publication number: WO 2011/042037 (14.04.2011 Gazette 2011/15)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (71) Applicant: Siemens Aktiengesellschaft 80333 München (DE)	(72) Inventors: BULAT, Ghenadie Lincoln, LN6 8BD (GB) MCMILLAN, Robin Bardney Lincolnshire LN3 5UD (GB)